Armor

Armor is a numerical representation of a given Hero's ability to mitigate damage. Each point of Armor is equal to a 1% reduction in damage. Specific types of Armor exist; Physical Armor works against Basic Attacks, whereas Spell Armor works against Ability-based damage Spell damage. Damage that is based on a percent of a given Hero's Health cannot be mitigated by any form of Armor. This means that Giant Killer (+1.5% Max health damage per attack) will do full damage to the target regardless of their current Armor state.

Abilities and talents that grant Armor do not stack additively. The game will only apply the highest (or lowest) amount of Armor to a Hero at any given time.[1] The cap on maximum negative Armor is -75. There are not many effects to go beyond -25, but there are a few cases where this can happen (including the Unraveling Talent on Chromie and Sgt. Hammer’s Shrapnel Mines).[2]

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